11 weeks tell ultrasound why???

Ashley

just wondering if anybody has an idea why my doctor wants to wait till 11 weeks ultrasound ? on Monday I had my first prenatal appointment. Talked about past pregnancies Health all that stuff. I told them about cramping, they did like 5 Second ultrasound to make sure the baby was in uterus. I also so the heartbeat was they didn't try to listen to it but I saw the little heart pumping when they check to make sure the baby was in the uterus. just curious on if anybody has any ideas while they're waiting until 11 weeks to do it for ultrasound.With my first daughter they did one at 8 weeks to make sure she was in the uterus